US4893887A - Holographic image transfer process - Google Patents

Holographic image transfer process Download PDF

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Publication number
US4893887A
US4893887A US06/560,747 US56074783A US4893887A US 4893887 A US4893887 A US 4893887A US 56074783 A US56074783 A US 56074783A US 4893887 A US4893887 A US 4893887A
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Prior art keywords
hologram
liquid adhesive
adhesive resin
contact
metallic hologram
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Expired - Fee Related
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US06/560,747
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Don M. Coates
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EIDP Inc
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EI Du Pont de Nemours and Co
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Priority to US06/560,747 priority Critical patent/US4893887A/en
Assigned to E. I. DU PONT DE NEMOURS AND COMPANY reassignment E. I. DU PONT DE NEMOURS AND COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: COATES, DON M.
Priority to JP59259433A priority patent/JPS60191284A/en
Priority to EP84308594A priority patent/EP0145481A3/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/328—Diffraction gratings; Holograms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/405—Marking
    • B42D25/425—Marking by deformation, e.g. embossing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/40—Manufacture
    • B42D25/45—Associating two or more layers
    • B42D25/465—Associating two or more layers using chemicals or adhesives
    • B42D25/47—Associating two or more layers using chemicals or adhesives using adhesives
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H1/00—Holographic processes or apparatus using light, infrared or ultraviolet waves for obtaining holograms or for obtaining an image from them; Details peculiar thereto
    • G03H1/02—Details of features involved during the holographic process; Replication of holograms without interference recording
    • G03H1/0276—Replicating a master hologram without interference recording
    • G03H1/028—Replicating a master hologram without interference recording by embossing
    • B42D2033/04—
    • B42D2033/10—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30—Identification or security features, e.g. for preventing forgery
    • B42D25/351—Translucent or partly translucent parts, e.g. windows
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2250/00—Laminate comprising a hologram layer
    • G03H2250/10—Laminate comprising a hologram layer arranged to be transferred onto a carrier body
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03H—HOLOGRAPHIC PROCESSES OR APPARATUS
    • G03H2270/00—Substrate bearing the hologram
    • G03H2270/10—Composition
    • G03H2270/13—Metallic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S359/00—Optical: systems and elements
    • Y10S359/90—Methods

Definitions

  • the present invention relates to a metallic reflecting hologram supported in a transparent matrix and its method of preparation.
  • U.S. Pat. No. 3,658,526 discloses preparing copies of a hologram using a photopolymer as the copy material.
  • U.S. Pat. No. 4,215,170 discloses a process of metallizing a substrate wherein a transfer member is metallized by vacuum deposition of the metal, a varnish is applied to the metal and the resulting assembly applied to the final substrate. The varnish is cured and the transfer member is removed leaving the metallized substrate.
  • U.S. Pat. No. 4,250,209 discloses a process for metallizing a substrate wherein a polymeric film is treated with a release agent, and a layer of metal is vacuum deposited over the release agent. An adhesive is applied to the metal, the adhesive is adhered to a substrate, and the polymeric film removed.
  • U.S. Pat. No. 4,313,984 discloses a laminated identity card containing core layers carrying security markings.
  • the present invention discloses a metallic reflecting hologram and its preparation by use of a die having a holographic image formed in the embossing surface thereof. Using the die, an image is replicated into a metallic film. A plastic adhesive is applied as a liquid to the metal hologram (film) and the metal hologram applied to a substrate and the liquid adhesive cured to convert it to a solid. A liquid is applied to the hologram surface and cured to convert it to a solid.
  • FIG. 1 is a pictorial representation of the process steps carried out in accordance with Example 1.
  • FIG. 2 is a pictorial representation of the process steps carried out in accordance with Example 3.
  • the metallic holograms of the present invention can be applied to any flat surface. Suitable surfaces include, but are not limited to, paper, wood, sheet metal, glass, plastic films, Tyvek® (a spunbonded polyolefin sheet material sold by Du Pont), etc. Generally the holograms of the present invention are useful in marking valuable documents such as money or passports to prevent their being counterfeited and for mass media images (illustrations) in magazines, books, or on advertising material.
  • the first step in producing the metallic holograms of the present invention is to prepare a die for forming the hologram.
  • the master from which the die is fabricated is prepared by conventional means.
  • the preferred method is to coat an incompletely cross-linked photopolymer on a glass plate.
  • the light from a laser is split into two beams which are collimated.
  • One collimated beam is reflected from the object to be holographed onto the partially cross-linked photopolymer.
  • the other beam of collimated light is transmitted directly onto the partially cross-linked photopolymer and serves as a reference beam.
  • the photopolymer forms a pattern of raised areas and valleys which are a holograph of the object being holographed.
  • the holograph is sprayed with colloidal silver, placed in a bath, and electroplated with nickel.
  • the thusly formed nickel die is separated from the master and mounted on a pressure roll or other stamping means.
  • the metal hologram can be fabricated using the die by any of several means.
  • One method is to vacuum deposit a metal layer directly on the die. Liquid adhesive is applied over the metallized die. The adhesive-coated metal layer, while still attached to the die, is then pressed against a substrate, the adhesive cured, and the die removed. The resulting metal hologram may then be covered with additional liquid adhesive, which is cured after application, to provide protection for the hologram.
  • Another method for producing the metallic hologram is to metallize a plastic film by vacuum metallization or by sputtering.
  • the deposited metal may be continuous or discontinuous.
  • the metallized film is embossed on the metallized surface using the die.
  • a liquid adhesive is applied to the metallized surface, and the adhesive-coated surface of the composite is pressed against a substrate.
  • the adhesive is cured and the plastic film removed.
  • the embossed metal hologram is covered with a layer of the liquid adhesive which is cured to complete the process.
  • Another technique for forming the metallic hologram is to emboss a thermoplastic film with the die and then vacuum deposit a metal onto the embossed film. A liquid adhesive is applied to the deposited metal; the film, metal and adhesive is pressed against a substrate and the adhesive cured. The film is removed and the metal hologram covered with more of the liquid adhesive which is cured to solidify it.
  • any transparent adhesive which is a liquid curable to a solid can be used in the present invention.
  • the adhesive is a cross-linkable polymer that cures to form a tough solvent-resistant film.
  • Suitable adhesives include, but are not limited to, epoxy resins, polyurethane resins, acrylic resins, and alkyd resins.
  • the metal hologram is very thin, about 0.02 to 0.1 micron in thickness. This thinness is necessary when using the two film transfer techniques described above because the metal surface which was not in contact with the die surface will ultimately be the reflective holographic surface; and if the metal is much thicker, it will not adequately reproduce the detailed topology of the holographic master from which the die was fabricated.
  • Aluminum and nickel base alloys such as Hastelloy® are the preferred metals.
  • the wave pattern must be covered with a protective layer.
  • this protective layer should have chemical characteristics similar to the adhesive (i.e., solubility, adhesion). Such is preferred to prevent the removal of the protective layer. For example, if various solvents are tried to dissolve the protective layer, the adhesive layer will be destroyed as well, thus preventing access to the image.
  • the use of the protective layer could, of course, be eliminated for end uses that do not require high security. In such cases, the metal should be resistant to oxidation and the elements. Hastelloy® has been found to be quite durable and is suitable for direct exposure to the elements. Otherwise, aluminum is adequate for the metal when it is covered by the protective layer.
  • a biaxially oriented 1 mil thick polyethylene terephthalate film was vacuum metallized with 0.025 micron aluminum using a conventional commercial metallizing unit.
  • the vacuum vessel was set to 0.012 mm Hg rather than 0.002 mm Hg so to produce a product with a low metal-to-film adhesion.
  • the metallized film was then embossed on the metallized surface with the desired holographic image.
  • Equipment for this embossing process comprised two steel rolls heated to 90° C. One of the rolls was covered with a nickel sleeve which was electroformed from a photopolymer coated glass plate hologram. The film to be embossed is fed between the pressure loaded rollers with the metallized side against the nickel sleeve.
  • epoxy FE-7235A and B H. B. Fuller Co. structural adhesive
  • the mixed resin was then applied evenly to the image areas on the metallized side of the polyester film. Then the film was cut up and individual image areas were pressed onto a variety of surfaces which were ultimately to support the holographic image. Among the surfaces were notebook paper, cardboard, and Tyvek®. Pressure was maintained on the film/adhesive/substrate surface sandwich by use of weights.
  • the adhesive resin was cured by heating at 60° C. for three hours. The polyethylene terephthalate film was peeled off of the images by hand. Left behind were exact replicas of the original holographic image on the support surface complete with reflecting aluminum surfaces.
  • Example 1 is repeated except Spensole® L53 moisture cure urethaneresin (Spencer Kellogg Co.) (no further description available) is substituted for the two part epoxy resin and cured at the same conditions as used for Ex. 1.
  • Biaxially oriented polypropylene film of 2 mil thickness was embossed with the embossing rolls used in Example 1 heated to 72° C.
  • the embossed film was vacuum metallized with aluminum using a conventional metallizing unit at the standard vacuum setting to provide a 0.025 micron thick aluminum coating.
  • epoxy FE-7235A and B were mixed.
  • the mixed resin was applied evenly to the image areas on the metallized side of the polypropylene film.
  • the film was cut up and the image areas were pressed on to various surfaces which were ultimately to support the holographic image.
  • the surfaces were notebook paper, cardboard, and Tyvek®. Pressure was maintained on the film of resin/substrate surface sandwich by means of weights.
  • the adhesive resin was cured by heating at 60° C. for three hours.
  • the polypropylene film was peeled off the images by hand. Left behind were exact replicas of the original holographic image on the support surface complete with reflecting aluminum surface.

Abstract

A supported thin metal hologram is formed and mounted on a substrate using an adhesive. In a preferred aspect, the hologram is covered with a transparent resin which preferably is identical to the adhesive.

Description

BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a metallic reflecting hologram supported in a transparent matrix and its method of preparation.
2. Prior Art
U.S. Pat. No. 3,658,526 discloses preparing copies of a hologram using a photopolymer as the copy material.
U.S. Pat. No. 4,215,170 discloses a process of metallizing a substrate wherein a transfer member is metallized by vacuum deposition of the metal, a varnish is applied to the metal and the resulting assembly applied to the final substrate. The varnish is cured and the transfer member is removed leaving the metallized substrate.
U.S. Pat. No. 4,250,209 discloses a process for metallizing a substrate wherein a polymeric film is treated with a release agent, and a layer of metal is vacuum deposited over the release agent. An adhesive is applied to the metal, the adhesive is adhered to a substrate, and the polymeric film removed.
U.S. Pat. No. 4,313,984 discloses a laminated identity card containing core layers carrying security markings.
SUMMARY OF THE INVENTION
The present invention discloses a metallic reflecting hologram and its preparation by use of a die having a holographic image formed in the embossing surface thereof. Using the die, an image is replicated into a metallic film. A plastic adhesive is applied as a liquid to the metal hologram (film) and the metal hologram applied to a substrate and the liquid adhesive cured to convert it to a solid. A liquid is applied to the hologram surface and cured to convert it to a solid.
DESCRIPTION OF THE DRAWINGS
FIG. 1 is a pictorial representation of the process steps carried out in accordance with Example 1.
FIG. 2 is a pictorial representation of the process steps carried out in accordance with Example 3.
DETAILED DESCRIPTION
The metallic holograms of the present invention can be applied to any flat surface. Suitable surfaces include, but are not limited to, paper, wood, sheet metal, glass, plastic films, Tyvek® (a spunbonded polyolefin sheet material sold by Du Pont), etc. Generally the holograms of the present invention are useful in marking valuable documents such as money or passports to prevent their being counterfeited and for mass media images (illustrations) in magazines, books, or on advertising material.
The first step in producing the metallic holograms of the present invention is to prepare a die for forming the hologram. The master from which the die is fabricated is prepared by conventional means. The preferred method is to coat an incompletely cross-linked photopolymer on a glass plate. The light from a laser is split into two beams which are collimated. One collimated beam is reflected from the object to be holographed onto the partially cross-linked photopolymer. The other beam of collimated light is transmitted directly onto the partially cross-linked photopolymer and serves as a reference beam. Upon exposure, the photopolymer forms a pattern of raised areas and valleys which are a holograph of the object being holographed. The holograph is sprayed with colloidal silver, placed in a bath, and electroplated with nickel. The thusly formed nickel die is separated from the master and mounted on a pressure roll or other stamping means.
The metal hologram can be fabricated using the die by any of several means. One method is to vacuum deposit a metal layer directly on the die. Liquid adhesive is applied over the metallized die. The adhesive-coated metal layer, while still attached to the die, is then pressed against a substrate, the adhesive cured, and the die removed. The resulting metal hologram may then be covered with additional liquid adhesive, which is cured after application, to provide protection for the hologram.
Another method for producing the metallic hologram is to metallize a plastic film by vacuum metallization or by sputtering. The deposited metal may be continuous or discontinuous. The metallized film is embossed on the metallized surface using the die. A liquid adhesive is applied to the metallized surface, and the adhesive-coated surface of the composite is pressed against a substrate. The adhesive is cured and the plastic film removed. The embossed metal hologram is covered with a layer of the liquid adhesive which is cured to complete the process.
Another technique for forming the metallic hologram is to emboss a thermoplastic film with the die and then vacuum deposit a metal onto the embossed film. A liquid adhesive is applied to the deposited metal; the film, metal and adhesive is pressed against a substrate and the adhesive cured. The film is removed and the metal hologram covered with more of the liquid adhesive which is cured to solidify it.
Any transparent adhesive which is a liquid curable to a solid can be used in the present invention. In a preferred aspect the adhesive is a cross-linkable polymer that cures to form a tough solvent-resistant film. Suitable adhesives include, but are not limited to, epoxy resins, polyurethane resins, acrylic resins, and alkyd resins.
The metal hologram is very thin, about 0.02 to 0.1 micron in thickness. This thinness is necessary when using the two film transfer techniques described above because the metal surface which was not in contact with the die surface will ultimately be the reflective holographic surface; and if the metal is much thicker, it will not adequately reproduce the detailed topology of the holographic master from which the die was fabricated. Aluminum and nickel base alloys such as Hastelloy® are the preferred metals.
Since the holographic image information is contained in the wave pattern, it would be possible to "pirate" the image by making an electroform or casting of the wave surface. To prevent such a counterfeiting ploy, the wave pattern must be covered with a protective layer. Additionally, this protective layer should have chemical characteristics similar to the adhesive (i.e., solubility, adhesion). Such is preferred to prevent the removal of the protective layer. For example, if various solvents are tried to dissolve the protective layer, the adhesive layer will be destroyed as well, thus preventing access to the image. The use of the protective layer could, of course, be eliminated for end uses that do not require high security. In such cases, the metal should be resistant to oxidation and the elements. Hastelloy® has been found to be quite durable and is suitable for direct exposure to the elements. Otherwise, aluminum is adequate for the metal when it is covered by the protective layer.
EXAMPLES
A biaxially oriented 1 mil thick polyethylene terephthalate film was vacuum metallized with 0.025 micron aluminum using a conventional commercial metallizing unit. The vacuum vessel was set to 0.012 mm Hg rather than 0.002 mm Hg so to produce a product with a low metal-to-film adhesion.
The metallized film was then embossed on the metallized surface with the desired holographic image. Equipment for this embossing process comprised two steel rolls heated to 90° C. One of the rolls was covered with a nickel sleeve which was electroformed from a photopolymer coated glass plate hologram. The film to be embossed is fed between the pressure loaded rollers with the metallized side against the nickel sleeve.
Next, equal parts of epoxy FE-7235A and B (H. B. Fuller Co.) structural adhesive were mixed. This is a very clear epoxy resin that has appropriate optical, viscosity, adhesion, and flexibility characteristics for use in the present invention. The mixed resin was then applied evenly to the image areas on the metallized side of the polyester film. Then the film was cut up and individual image areas were pressed onto a variety of surfaces which were ultimately to support the holographic image. Among the surfaces were notebook paper, cardboard, and Tyvek®. Pressure was maintained on the film/adhesive/substrate surface sandwich by use of weights. The adhesive resin was cured by heating at 60° C. for three hours. The polyethylene terephthalate film was peeled off of the images by hand. Left behind were exact replicas of the original holographic image on the support surface complete with reflecting aluminum surfaces.
Finally, a fresh batch of the epoxy resin was made as before. The transferred surfaces were then smoothly top coated with the resin and cured at 60° C. for one hour. The resulting images were bright and very durable.
EXAMPLE 2
Example 1 is repeated except Spensole® L53 moisture cure urethaneresin (Spencer Kellogg Co.) (no further description available) is substituted for the two part epoxy resin and cured at the same conditions as used for Ex. 1.
EXAMPLE 3
Biaxially oriented polypropylene film of 2 mil thickness was embossed with the embossing rolls used in Example 1 heated to 72° C. The embossed film was vacuum metallized with aluminum using a conventional metallizing unit at the standard vacuum setting to provide a 0.025 micron thick aluminum coating.
Next, equal parts of epoxy FE-7235A and B were mixed. The mixed resin was applied evenly to the image areas on the metallized side of the polypropylene film. The film was cut up and the image areas were pressed on to various surfaces which were ultimately to support the holographic image. Among the surfaces were notebook paper, cardboard, and Tyvek®. Pressure was maintained on the film of resin/substrate surface sandwich by means of weights. The adhesive resin was cured by heating at 60° C. for three hours.
The polypropylene film was peeled off the images by hand. Left behind were exact replicas of the original holographic image on the support surface complete with reflecting aluminum surface.
Finally, a fresh batch of the epoxy resin is made as before. The transferred surface was then smoothly top coated with the resin and cured at 60° C. for one hour. The resulting images were bright and very durable.
Using these techniques, a hologram similar in size and complexity to the Department of the Treasury seal found on the face of U.S. currency was applied to the surface of security paper as described in U.S 4,310,591. The image was bright and durable and judged acceptable for its intended use as an anti-counter-fitting device.

Claims (3)

I claim:
1. A process for applying a metallic hologram to a solid substrate which comprises the following steps in sequence:
(a) forming a thin metallic hologram;
(b) coating a first side of said thin metallic hologram with a crosslinkable liquid adhesive resin;
(c) contacting the coating on the thin metallic hologram with a solid substrate;
(d) curing said crosslinkable liquid adhesive resin to form a tough solvent-resistant film while said metallic hologram and said solid substrate are in contact with said crosslinkable liquid adhesive resin;
(e) coating a second side of the thin metallic hologram with a transparent crosslinkable liquid adhesive resin; and
(f) curing the transparent liquid adhesive resin to form a tough solvent-resistant film while it is in contact with said second side of the thin metallic hologram.
2. A process for applying a metallic hologram to a solid substrate which comprises the following steps in sequence:
(a) forming a thin metallic hologram on the surface of a metal die by deposition of metal onto the surface of a metal die that contains a holographic image, said metallic hologram having two major sides, one of said major sides hereinafter designated: first side, being out of contact with the surface of the metal die, the second of said major sides hereinafter being designated: second side, being initially in contact with the surface of the metal die;
(b) coating the first side of said thin metallic hologram with a crosslinkable liquid adhesive resin;
(c) contacting the coating on the thin metallic hologram with a solid substrate;
(d) curing said crosslinkable liquid adhesive resin to form a tough solvent-resistant film while said metallic hologram and said solid substrate are in contact with said crosslinkable liquid adhesive resin, and said metal die is in contact with said second side;
(e) removing said metallic die from contact with said second side;
(f) coating said second side with a crosslinkable liquid adhesive resin; and
(g) curing the coating applied in step (f) to form a tough solvent-resistant film.
3. A process for applying a metallic hologram to a solid substrate which comprises the following steps in sequence:
(a) forming a thin metallic hologram by deposition of a metal film onto a thermoplastic layer and then embossing the metal film with a holographic image, said metallic hologram having two major sides, one of said major sides hereinafter designated: first side, being out of contact with the thermoplastic layer, the second of said major sides hereinafter being designated: second side, being initially in contact with the thermoplastic layer;
(b) coating the first side of said thin metallic hologram with a crosslinkable liquid adhesive resin;
(c) contacting the coating on the thin metallic hologram with a solid substrate;
(d) curing said crosslinkable liquid adhesive resin to form a tough solvent-resistant film while the first side of said metallic hologram and said solid substrate are in contact with the crosslinkable liquid adhesive resin and said thermoplastic layer is in contact with said second side;
(e) removing said thermoplastic layer from contact with said second side;
(f) coating said second side with a crosslinkable liquid adhesive resin; and
(g) curing the coating applied in step (f) to form a tough solvent-resistant film.
US06/560,747 1983-12-12 1983-12-12 Holographic image transfer process Expired - Fee Related US4893887A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US06/560,747 US4893887A (en) 1983-12-12 1983-12-12 Holographic image transfer process
JP59259433A JPS60191284A (en) 1983-12-12 1984-12-10 Improved halographic image transfer
EP84308594A EP0145481A3 (en) 1983-12-12 1984-12-11 Improved holographic image transfer process

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Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239396A (en) * 1991-06-06 1993-08-24 Thompson Marion E Safety application of holographic material
US5318816A (en) * 1992-12-23 1994-06-07 Hughes Aircraft Company Laminated hologram decals for identification cards and the like
US5464690A (en) * 1994-04-04 1995-11-07 Novavision, Inc. Holographic document and method for forming
GB2300379A (en) * 1995-04-05 1996-11-06 Applied Holographics Application to substrates of elements or films which have a surface relief pattern providing an optically variable effect
US5724161A (en) * 1995-09-29 1998-03-03 Delco Electronics Corp. Holographic information display for exterior vehicle application
WO1998008681A1 (en) * 1996-08-26 1998-03-05 Tomas Meinen Process and device for manufacturing id cards
US5762573A (en) * 1996-06-13 1998-06-09 Lisco, Inc. Game ball with a hologram image
US5871608A (en) * 1997-03-27 1999-02-16 Hampshire Holographic Manufacturing Corp. Method for transferring a metallized holographic image
US5902436A (en) * 1996-07-09 1999-05-11 Hampshire Holographic Manufacturing Corp. Method for transferring a metallized holographic image
US5922455A (en) * 1996-06-04 1999-07-13 Hampshire Holographic Manufacturing Corp. Holographically enhanced wrapping elements
WO2001015122A2 (en) * 1999-08-24 2001-03-01 Bautista Perez Salazar Ramon Removable security optical coating placed on a printed surface and/or product containing such coating
US6381924B1 (en) 1999-08-13 2002-05-07 Southpac Trust International, Inc. Floral wrapper having printed design with shaded and highlighted areas
US6442894B2 (en) 1998-02-10 2002-09-03 Southpac Trust International, Inc. Floral wrapper having printed design with shaded and highlighted areas
US6497778B1 (en) 2000-04-19 2002-12-24 Novavision, Inc. Method for making holographic foil
US20030165746A1 (en) * 2000-08-11 2003-09-04 Stefan Stadler Holographic data memory
US6638386B2 (en) 2000-04-19 2003-10-28 Novavision, Inc. Method for making holographic foil
KR100482181B1 (en) * 2002-02-26 2005-04-13 롯데알미늄 주식회사 Transcript Film for Hologram and Method for Producing the same
US20050082697A1 (en) * 2003-10-15 2005-04-21 Klaser Technology Inc. Solvent-resisting holographic film and manufacture thereof
US20050186400A1 (en) * 2004-02-19 2005-08-25 Vladek Kasperchik Durable printed composite materials and associated methods
US20050235606A1 (en) * 1994-01-07 2005-10-27 Weder Donald E Floral grouping wrapper having a holographic design and methods of use
US20060154050A1 (en) * 2004-05-18 2006-07-13 Toray Plastics (America), Inc., A Corporation Of Rhode Island Holographic transfer thermoplastic sheet
US20060194024A1 (en) * 2005-02-28 2006-08-31 Tefco Aomori Co., Ltd. Decorative pattern and production method therefor
KR100815474B1 (en) 2007-02-20 2008-03-20 주식회사 라임텍 A method for implementing hologram in aluminium plate
US20090229206A1 (en) * 2008-03-11 2009-09-17 Daniel Christman Decorative holographic tile
US20170207114A1 (en) * 2001-10-30 2017-07-20 Semiconductor Energy Laboratory Co., Ltd. Semiconductor Device and Method of Manufacturing the Same

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1328363C (en) * 1986-10-15 1994-04-12 Yoichi Fukushima Optical recording card having hologram contained therein and method of producing the same
US5010243A (en) * 1986-10-15 1991-04-23 Kyodo Printing Co., Ltd. Method of producing an optical recording card having a hologram contained therein
GB8702573D0 (en) * 1987-02-05 1987-03-11 Amblehurst Ltd Adhesive sheet material
GB8708290D0 (en) * 1987-04-07 1987-05-13 Marks Spencer Plc Decorated fabric structures
GB8715179D0 (en) * 1987-06-29 1987-08-05 Metal Closures Group Plc Articles carrying reflective holograms
FR2671032A1 (en) * 1990-12-28 1992-07-03 Hologram Ind INFALSIFIABLE DOCUMENT LAMINATED WITH HOLOGRAM AND METHOD FOR MANUFACTURING SUCH A DOCUMENT.
DE4211235C2 (en) * 1992-04-03 2003-04-17 Gao Ges Automation Org Method and device for producing metallic surface elements on substrates and their use
DE4404128A1 (en) † 1993-02-19 1994-08-25 Gao Ges Automation Org Security document and method for its manufacture
GB9406794D0 (en) * 1994-04-06 1994-05-25 Applied Holographics Protected relief patterns
AU2002239528A1 (en) 2000-11-02 2002-05-27 Taylor Corporation Lenticular card and processes for making

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658526A (en) * 1969-08-25 1972-04-25 Du Pont Hologram recording in photopolymerizable layers
AU488652B2 (en) * 1973-09-26 1976-04-01 Commonwealth Scientific And Industrial Research Organisation Improvements in or relating to security tokens
US4215170A (en) * 1978-02-28 1980-07-29 Eurographics Holding, N. V. Metallization process
US4250209A (en) * 1978-05-10 1981-02-10 Lurex B.V. Transfer metallizing process and product produced thereby
US4250217A (en) * 1975-11-17 1981-02-10 Lgz Landis & Gyr Zug Ag Documents embossed with machine-readable information by means of an embossing foil
US4310591A (en) * 1979-01-30 1982-01-12 E. I. Du Pont De Nemours And Company Security paper from film-fibril sheets
US4313984A (en) * 1978-12-30 1982-02-02 Hoechst Aktiengesellschaft Laminated identity card having separation-resistant laminae and method of manufacturing same
US4352706A (en) * 1981-08-31 1982-10-05 Miller Lee H Process for applying a metallic image in register to a document of value
WO1983000653A1 (en) * 1981-08-24 1983-03-03 Solomon, David, Henry Production of embossed thermoplastic sheets

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3585113A (en) * 1965-12-23 1971-06-15 Rca Corp Process for fabricating replicating masters
US3565978A (en) * 1967-09-11 1971-02-23 Xerox Corp Replication of surface deformation images
US3552853A (en) * 1968-07-01 1971-01-05 Chain Lakes Res Assoc Hologramic identification system
US3619024A (en) * 1969-09-29 1971-11-09 Rca Corp Packing of holotape
JPS5835579A (en) * 1981-08-28 1983-03-02 Toppan Printing Co Ltd Manufacture of reflection type hologram
JPS5865466A (en) * 1981-10-15 1983-04-19 Dainippon Printing Co Ltd Duplicating method for hologram

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3658526A (en) * 1969-08-25 1972-04-25 Du Pont Hologram recording in photopolymerizable layers
AU488652B2 (en) * 1973-09-26 1976-04-01 Commonwealth Scientific And Industrial Research Organisation Improvements in or relating to security tokens
US4250217A (en) * 1975-11-17 1981-02-10 Lgz Landis & Gyr Zug Ag Documents embossed with machine-readable information by means of an embossing foil
US4215170A (en) * 1978-02-28 1980-07-29 Eurographics Holding, N. V. Metallization process
US4250209A (en) * 1978-05-10 1981-02-10 Lurex B.V. Transfer metallizing process and product produced thereby
US4313984A (en) * 1978-12-30 1982-02-02 Hoechst Aktiengesellschaft Laminated identity card having separation-resistant laminae and method of manufacturing same
US4310591A (en) * 1979-01-30 1982-01-12 E. I. Du Pont De Nemours And Company Security paper from film-fibril sheets
WO1983000653A1 (en) * 1981-08-24 1983-03-03 Solomon, David, Henry Production of embossed thermoplastic sheets
US4352706A (en) * 1981-08-31 1982-10-05 Miller Lee H Process for applying a metallic image in register to a document of value

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
High Technology, vol. 4, No. 2, Aug. 1982, pp. 68 73. *
High Technology, vol. 4, No. 2, Aug. 1982, pp. 68-73.
Wall Street Journal, Jun. 30, 1982, p. 14. *

Cited By (44)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5239396A (en) * 1991-06-06 1993-08-24 Thompson Marion E Safety application of holographic material
US5318816A (en) * 1992-12-23 1994-06-07 Hughes Aircraft Company Laminated hologram decals for identification cards and the like
US5401346A (en) * 1992-12-23 1995-03-28 Hughes Aircraft Company Laminated hologram decals for identification cards and the like
US20050235606A1 (en) * 1994-01-07 2005-10-27 Weder Donald E Floral grouping wrapper having a holographic design and methods of use
US20060254215A1 (en) * 1994-01-07 2006-11-16 Weder Donald E Methods for wrapping a floral grouping with a wrapper having a holographic design
US5464690A (en) * 1994-04-04 1995-11-07 Novavision, Inc. Holographic document and method for forming
US5643678A (en) * 1994-04-04 1997-07-01 Novavision, Inc. Holographic film and method for forming
US5674580A (en) * 1994-04-04 1997-10-07 Novavision, Inc. Plastic foil for hot leaf stamping and method for forming
US5810957A (en) * 1994-04-04 1998-09-22 Novavision, Inc. Method for forming holographic foil
US5753349A (en) * 1994-04-04 1998-05-19 Novavision, Inc. Document having security image and composite sheet and method for forming
US5759683A (en) * 1994-04-04 1998-06-02 Novavision, Inc. Holographic document with holographic image or diffraction pattern directly embossed thereon
GB2300379B (en) * 1995-04-05 1998-09-09 Applied Holographics Application of diffractive elements to substrates
GB2300379A (en) * 1995-04-05 1996-11-06 Applied Holographics Application to substrates of elements or films which have a surface relief pattern providing an optically variable effect
US5724161A (en) * 1995-09-29 1998-03-03 Delco Electronics Corp. Holographic information display for exterior vehicle application
US5922455A (en) * 1996-06-04 1999-07-13 Hampshire Holographic Manufacturing Corp. Holographically enhanced wrapping elements
US5762573A (en) * 1996-06-13 1998-06-09 Lisco, Inc. Game ball with a hologram image
US5902436A (en) * 1996-07-09 1999-05-11 Hampshire Holographic Manufacturing Corp. Method for transferring a metallized holographic image
WO1998008681A1 (en) * 1996-08-26 1998-03-05 Tomas Meinen Process and device for manufacturing id cards
US5871608A (en) * 1997-03-27 1999-02-16 Hampshire Holographic Manufacturing Corp. Method for transferring a metallized holographic image
US6574918B2 (en) 1998-02-10 2003-06-10 Southpac Trust International, Inc. Floral wrapper having printed design with shaded and highlighted areas
US20060032134A1 (en) * 1998-02-10 2006-02-16 Weder Donald E Potted plant package having printed design with shaded and highlighted areas
US7000349B2 (en) 1998-02-10 2006-02-21 William M.Weder And William F. Straeter Floral wrapper having printed design with shaded and highlighted areas
US6442894B2 (en) 1998-02-10 2002-09-03 Southpac Trust International, Inc. Floral wrapper having printed design with shaded and highlighted areas
US6986223B2 (en) 1998-02-10 2006-01-17 Wanda M. Weder and William F. Straeter, not individually but solely as Trustees of The Family Trust U/T/A dated December 8, 1995 Floral wrapper having printed design with shaded and highlighted areas
US20040194379A1 (en) * 1998-02-10 2004-10-07 Weder Donald E. Floral wrapper having printed design with shaded and highlighted areas
US6708447B2 (en) 1998-02-10 2004-03-23 Southpac Trust International, Inc. Floral wrapper having printed design with shaded and highlighted areas
US6381924B1 (en) 1999-08-13 2002-05-07 Southpac Trust International, Inc. Floral wrapper having printed design with shaded and highlighted areas
WO2001015122A2 (en) * 1999-08-24 2001-03-01 Bautista Perez Salazar Ramon Removable security optical coating placed on a printed surface and/or product containing such coating
WO2001015122A3 (en) * 1999-08-24 2001-07-19 Bautista Perez Salazar Ramon Removable security optical coating placed on a printed surface and/or product containing such coating
US6497778B1 (en) 2000-04-19 2002-12-24 Novavision, Inc. Method for making holographic foil
US6638386B2 (en) 2000-04-19 2003-10-28 Novavision, Inc. Method for making holographic foil
US7727678B2 (en) * 2000-08-11 2010-06-01 Tesa Scribos Gmbh Holographic data memory
US20030165746A1 (en) * 2000-08-11 2003-09-04 Stefan Stadler Holographic data memory
US10607883B2 (en) * 2001-10-30 2020-03-31 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device and method of manufacturing the same
US20170207114A1 (en) * 2001-10-30 2017-07-20 Semiconductor Energy Laboratory Co., Ltd. Semiconductor Device and Method of Manufacturing the Same
KR100482181B1 (en) * 2002-02-26 2005-04-13 롯데알미늄 주식회사 Transcript Film for Hologram and Method for Producing the same
US20050082697A1 (en) * 2003-10-15 2005-04-21 Klaser Technology Inc. Solvent-resisting holographic film and manufacture thereof
US20050186400A1 (en) * 2004-02-19 2005-08-25 Vladek Kasperchik Durable printed composite materials and associated methods
US8252409B2 (en) * 2004-02-19 2012-08-28 Hewlett-Packard Development Company, L.P. Durable printed composite materials and associated methods
US20060154050A1 (en) * 2004-05-18 2006-07-13 Toray Plastics (America), Inc., A Corporation Of Rhode Island Holographic transfer thermoplastic sheet
WO2005116756A3 (en) * 2004-05-18 2006-12-21 Toray Plastics America Inc Holographic transfer thermoplastic sheet
US20060194024A1 (en) * 2005-02-28 2006-08-31 Tefco Aomori Co., Ltd. Decorative pattern and production method therefor
KR100815474B1 (en) 2007-02-20 2008-03-20 주식회사 라임텍 A method for implementing hologram in aluminium plate
US20090229206A1 (en) * 2008-03-11 2009-09-17 Daniel Christman Decorative holographic tile

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EP0145481A2 (en) 1985-06-19
JPS60191284A (en) 1985-09-28

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